Littelfuse SE-134C-10 - The SE-134C/SE-135 is a microprocessor-based, combination ground-wire monitor and ground-fault relay for resistance-grounded or solidly grounded systems. It continuously monitors the integrity of the ground conductor to protect portable equipment from hazardous voltages caused by ground faults. The SE-134C/SE-135 is field proven in monitoring trailing cables on large mobile equipment such as drag-lines, mining shovels, shore-to-ship power cables, dock-side cranes, stacker-reclaimers, submersible pumps, and portable conveyors.
Littelfuse

SE-134C-10

Alternate Item Number: SE-134C-10

UPC: 079458988017


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Overview

The Littelfuse SE-134C-10 is a microprocessor-based combination ground-wire monitor and ground-fault relay designed for resistance-grounded or solidly grounded systems. It provides continuous monitoring of ground conductor integrity to protect portable equipment from hazardous voltages caused by ground faults. This field-proven device is ideal for critical applications such as monitoring trailing cables on large mobile equipment including drag-lines, mining shovels, shore-to-ship power cables, dock-side cranes, stacker-reclaimers, submersible pumps, and portable conveyors. Key specifications include adjustable trip level settings ranging from 0.5 A to 12.5 A (SE-CS10) or 2 A to 50 A (SE-CS40), with adjustable time delay settings from 0.1 to 2.5 seconds. The unit supports selectable fail-safe or non-fail-safe contact operating modes and features standard harmonic filtering. Input voltage options include 65-265 Vac, 85-275 Vdc, and 18-72 Vdc. The SE-134C/SE-135 series offers isolated Form A and Form B, plus two Form C output contacts. Dimensions are H 213 mm (8.4"), W 99 mm (3.9"), D 132 mm (5.2"). Approvals include CSA certified, UL Listed (E340889), C-Tick (Australia), and CE. It also features a standard test button, reset button, and conformal coating. The SE-134C/SE-135 comes with a 5-year warranty and supports panel or surface mounting. GC Trip Resistance options are 28Ω (standard) and 45Ω (XGC option). Accessories like the SE-CS10/SE-CS40 Series Ground-Fault Current Transformer and SE-TA6A Series Termination Assembly are required for operation. This robust relay ensures operational efficiency and safety in demanding industrial environments.
  • Microprocessor-based ground-fault relay and ground-wire monitor for resistance or solidly grounded systems
  • Adjustable trip levels: 0.5–12.5 A (SE-CS10) or 2–50 A (SE-CS40)
  • Adjustable time delay: 0.1–2.5 seconds; selectable fail-safe/non-fail-safe modes
  • Input voltage: 65–265 Vac, 85–275 Vdc, or 18–72 Vdc; harmonic filtering included
  • CSA, UL, CE, and C-Tick certified; 5-year warranty; conformal coating

Specifications

Application
Mining
Brand Name
Littelfuse
Current Rating
0.5-12.5 A (SE-CS10), 2-50 A (SE-CS40)
Mounting Type
Panel or Surface
Poles
Form A, Form B, 2x Form C
Series
SE-134C/SE-135
Size
H 213 mm (8.4"), W 99 mm (3.9"), D 132 mm (5.2")
Special Features
None
Standard
CSA UL C-TICK CE
Sub Brand
SE 134C Series
Type
Trailing Cable Protection
Voltage Rating
65-265 Vac, 85-275 Vdc, 18-72 Vdc
Package Weight (Imperial)
5.280 L
Package Weight (Metric)
2.400 kg
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Frequently Asked Questions about Littelfuse

What certifications and standards do Littelfuse products comply with?

Littelfuse products are certified to multiple international standards, including UL (Underwriters Laboratories), CSA (Canadian Standards Association), CCC (China Compulsory Certification), and EAC (Eurasian Conformity). Customers can verify specific product certifications by consulting individual product datasheets on Littelfuse.com, which provide comprehensive details about standards compliance for each component.

What industries and applications are Littelfuse products used for?

Littelfuse products are critical for electrical protection and safety across multiple industrial sectors, including manufacturing, automation, power distribution, and electrical control systems. Their comprehensive product portfolio serves industries that require robust electrical protection, including motor and pump applications, solar installations, programmable logic controllers (PLCs), electrical switch panels, and critical infrastructure environments. Key product lines protect against overcurrent, voltage transients, ground faults, and temperature-related electrical risks, ensuring equipment safety and operational reliability.

What technical support does Littelfuse offer?

Littelfuse offers comprehensive technical support through multiple channels. Their Technical Hotline (800-TEC-FUSE) provides direct access to engineers who can help identify issues and recommend solutions. Additionally, Littelfuse offers extensive online Technical Resources at Littelfuse.com, including datasheets, product manuals, whitepapers, application guides, and online design tools. Their experienced product and application engineers also provide step-by-step support from design to installation.

What are the main product lines offered by Littelfuse?

Littelfuse offers comprehensive industrial protection and control product lines, including fuses, fuse holders, protection relays, temperature sensors, and electrical safety components. Their key product categories span surge protective devices, custom OEM products, electrical switch panels, medium voltage fuses, ground-fault protection relays, motor and pump protection devices, and temperature sensors. These products are designed to minimize electrical safety hazards, limit equipment damage, improve productivity, and safeguard personnel from electrical faults.

What are the key features of Littelfuse products?

Littelfuse products feature exceptional circuit protection technologies with key characteristics including UL/IEC safety standard compliance, low internal resistance, and advanced protective capabilities across multiple product lines. Their components provide critical protection for industrial systems, offering features like overcurrent protection, voltage transient suppression, and resettable protection devices with ultra-low resistance and compact designs. Key product lines include fuses, metal oxide varistors (MOVs), TVS diodes, PolySwitch devices, and specialized electronic protection components that enhance system reliability and safety.

What environmental ratings do Littelfuse products have?

Littelfuse products feature comprehensive environmental ratings, including NEMA Type 1, 2, 3, 3R, 4/4X, 12, and 13 certifications, as well as IP65 protection. These ratings ensure superior protection in diverse industrial environments, with an operating temperature range of -40°F to +131°F (-40°C to +55°C). Many products also include UV-stabilized materials and neoprene gaskets for enhanced durability in outdoor and challenging conditions.

What accessories are available for Littelfuse products?

Littelfuse offers several key accessories across their product lines, including fuse holders, voltage monitoring modules, and terminal connectors. Specific accessories include the LPSM003ZXID (indicating) and LPSM003Z (non-indicating) POWR-SAFE Dead Front fuse holders for Class CC and Midget-Style fuses, the VRM6048 voltage monitor accessory module, and female quick connect terminals (P1015 series) in various wire gauge sizes. These accessories are designed to enhance protection, monitoring, and connectivity for Littelfuse electrical components.

What is Littelfuse's warranty policy?

Littelfuse provides comprehensive warranty details on their official website at www.littelfuse.com/warranty. Customers should visit this page to review the specific warranty terms and conditions for their specific product lines. For direct warranty support or questions, customers can contact Littelfuse Technical Support at 1-800-TEC-FUSE or email [email protected].

What communication protocols do Littelfuse products support?

Littelfuse supports a comprehensive range of industrial communication protocols, including PROFIBUS, PROFINET, EtherNet/IP, DeviceNet, Modbus RTU, and CANopen. Our products provide flexible connectivity solutions across multiple industrial automation platforms, enabling seamless integration with various control systems and network architectures.

How are Littelfuse products typically installed?

Littelfuse products are typically installed using specialized mounting hardware like fuse holders, blocks, and panels designed for specific industrial applications. The POWR-SAFE Dead Front holders, for example, provide optimum protection for Class CC and Midget-Style fuses, supporting installations up to 600 VAC/DC. Installation often involves using precision terminals with strain relief, such as 0.25 in. female quick connect terminals, to ensure secure and safe electrical connections in industrial control systems.